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Another SQL question

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    #1

    Another SQL question

    I don't know what it is about Xbasic and SQL or maybe it's the rows. I'm just not getting the hang of it. I have a repeating section with 20 rows once data is filled in there is a save button that will update and write everything to the db dirty or not.

    This is what I have right now
    Code:
    layout_pos = e.datasubmitted.layout_pos
	format = e.datasubmitted.format
	default = e.datasubmitted.default
	start_pos = e.datasubmitted.start_pos
	end_pos = e.datasubmitted.end_pos
	naaccr_item = e.datasubmitted.naaccr_item
	naaccr_name = e.datasubmitted.naaccr_name

sql_update = "Update dbo.txd_specs_mv set Txd_Specs_ID = Txd_Specs.ID where Layout_Pos = '" + layout_pos + "' and Format = '" + format + "' and Start_Pos = '" + start_pos + "' and End_Pos = '" + end_pos + "' and Default = '" + default + "' and naaccr_item = '" + naaccr_item + "' and naaccr_name = '" + naaccr_name + "'"
	cn.Execute(sql_update)
	cn.Close()
    All of the e.datasubmitted commands are working. The save button just doesn't update the DB with the new values. Can anyone help me out here?
    Tags: None
    #2
    Re: Another SQL question

    Maybe the where criteria does not match any existing records. I would also add a test for an SQL error and maybe utilize SQL parameters.
    https://appsbydesign.co.uk/

    Comment

      #3
      Re: Another SQL question

      I've changed it a little...
      sql_update = "Update Txd_Specs_Mv set Layout_Pos = '" + layout_pos + "', format = '" + format + "', default = '" + default + "', start_pos = '" + start_pos + "', end_pos = '" + end_pos + "', naaccr_item = '" + naaccr_item + "', naaccr_name = '" + naaccr_name + "' where Txd_Specs_ID = Txd_Specs_ID"
      No matter what I set it two I get 0 in the number fields and blanks in the character fields.

      Comment

        #4
        Re: Another SQL question

        Originally posted by shinra View Post
        I've changed it a little...


        No matter what I set it two I get 0 in the number fields and blanks in the character fields.
        So what does sql_update look like after the values of the fields/variables are put in?
        Al Buchholz
        Bookwood Systems, LTD
        Weekly QReportBuilder Webinars Thursday 1 pm CST

        Occam's Razor - KISS
        Normalize till it hurts - De-normalize till it works.
        Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
        When we triage a problem it is much easier to read sample systems than to read a mind.
        "Make it as simple as possible, but not simpler."
        Albert Einstein

        http://www.iadn.com/images/media/iadn_member.png

        Comment

          #5
          Re: Another SQL question

          Be careful when using e.datesubmitted to populate variables. If any of them are NOT character fields you will need to convert them. So if start_pos is a numeric field:

          start_pos = convert_type(e.datasubmitted.start_pos,"N")

          Also I would consider using arguments to populate the qry string
          Glen Schild



          My Blog

          Comment

            #6
            Re: Another SQL question

            This is what it looks like with the debugger..
            Update Txd_Specs_Mv set Layout_Pos = '0', [format] = '', [default] = '', start_pos = '0', end_pos = '0', naaccr_item = '0', naaccr_name = '' where Txd_Specs_ID = Txd_Specs_ID
            Which it then updates the entire table to values listed above...

            Comment

              #7
              Re: Another SQL question

              Using arguments might be an idea. I've not had much experience with those, but it's all new to me.

              Comment

                #8
                Re: Another SQL question

                Another update it seems I'm almost there... here is the new sql_update result:
                Update Txd_Specs_Mv set Layout_Pos = '20', [format] = 'B,1,L', [default] = '', start_pos = '174', end_pos = '174', naaccr_item = '362', naaccr_name = 'Census Tract Block Group' where Txd_Specs_ID = '8'
                I need to figure out how to loop it correctly so instead of one result it will have 20 for each value.

                Comment

                  #9
                  Re: Another SQL question

                  All of the fields I'm trying to populate are indeed Character fields, except Txd_Specs_ID. Using the e.datasubmitted.(field name) is the only way I get the correct results but when it hits the sql statement everything is 0 or blank which of course wipes the entire table. How do inject the variables into the sql update statement?

                  Comment

                    #10
                    Re: Another SQL question

                    Originally posted by shinra View Post
                    How do inject the variables into the sql update statement?
                    There are examples using arguments and testing for SQL errors in the alpha wiki and forum.
                    A few examples I just found are
                    http://www.alphasoftware.com/alphafo...t=sql+argument
                    http://www.alphasoftware.com/alphafo...highlight=conn.
                    http://wiki.alphasoftware.com/Using+...AO+with+Xbasic
                    http://wiki.alphasoftware.com/SQL+CallResult+Object
                    http://wiki.alphasoftware.com/SQL+Co...aDAO+Reference
                    Not sure which version of sql you are using but you should be able to run your update query direct using SQL Management studio or similar to verify it works.
                    Last edited by mumfie; 03-11-2016, 02:38 PM.
                    https://appsbydesign.co.uk/

                    Comment

                      #11
                      Re: Another SQL question

                      awesome thanks, will start looking at these right away.

                      Comment

                        #12
                        Re: Another SQL question

                        Well using the args and insert method I'm able to save changes on my screen but it doesn't want to write to the database.

                        Comment

                          #13
                          Re: Another SQL question

                          Hi Shinra,

                          Did you get any error message. In another link I showed you how to catch an err and append it into a text file?

                          Regards,

                          Doron
                          The Farber Consulting Group, Inc.

                          Main Web Site: http://www.dFarber.com
                          Alpha Five Development

                          Comment

                            #14
                            Re: Another SQL question

                            Actually that was my next step.

                            Comment

                              #15
                              Re: Another SQL question

                              It appears my SQL syntax is wrong so I need to fix that.

                              Comment

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